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cpm mode plots

This commit is contained in:
Max 2022-11-18 17:59:51 -05:00
parent cbb6462106
commit ac9cfa58b7
2 changed files with 45 additions and 0 deletions
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36
op25/gr-op25_repeater/apps/gr_gnuplot.py
View File

@ -162,6 +162,13 @@ class wrap_gp(object):
s += '\n'.join(['%f' % self.buf[i*self.sps+j] for j in range(self.sps+1)])
s += '\ne\n'
plots.append('"-" with lines')
elif mode == 'cpm':
nplots = len(self.buf)
ab = np.abs(self.buf)
for i in range(len(ab)):
s += '%f\n' % ab[i]
s += '\ne\n'
plots.append('"-" with lines')
elif mode == 'constellation':
plot_size = (240,240)
self.buf = self.buf[:100]
@ -317,6 +324,11 @@ class wrap_gp(object):
h+= 'set yrange [-4:4]\n'
h+= 'set title "Datascope %s" %s\n' % (self.title, label_color)
plot_color = ''
elif mode == 'cpm':
h+= background
#h+= 'set yrange [-4:4]\n'
h+= 'set title "CPM RSSI %s" %s\n' % (self.title, label_color)
#plot_color = ''
elif mode == 'sync':
h += 'set object 1 rect from screen 0,0 to screen 1,1 %s behind\n' % (background_color)
h += 'set size square\n'
@ -420,6 +432,30 @@ class eye_sink_f(gr.sync_block):
def kill(self):
self.gnuplot.kill()
class cpm_sink_c(gr.sync_block):
"""
"""
def __init__(self, debug = _def_debug, sps = _def_sps):
gr.sync_block.__init__(self,
name="cpm_sink_c",
in_sig=[np.complex64],
out_sig=None)
self.debug = debug
self.sps = sps
self.gnuplot = wrap_gp(sps=self.sps)
def work(self, input_items, output_items):
in0 = input_items[0]
l = len(in0)
consumed = self.gnuplot.plot(in0, self.sps*3000, mode='cpm')
return consumed ### len(input_items[0])
def set_title(self, title):
self.gnuplot.set_title(title)
def kill(self):
self.gnuplot.kill()
class constellation_sink_c(gr.sync_block):
"""
"""

9
op25/gr-op25_repeater/apps/multi_rx.py
View File

@ -50,6 +50,7 @@ from gr_gnuplot import symbol_sink_f
from gr_gnuplot import eye_sink_f
from gr_gnuplot import setup_correlation
from gr_gnuplot import sync_plot
from gr_gnuplot import cpm_sink_c
from nxdn_trunking import cac_message
@ -289,6 +290,14 @@ class channel(object):
self.sinks.append(sink)
self.demod.connect_bb('symbol_filter', sink)
self.kill_sink.append(sink)
elif plot.startswith('cpm'):
if self.symbol_rate != 6000: # fixed rate value for p25p2
sys.stderr.write('warning: symbol rate %d may be incorrect for CPM channel %s\n' % (self.symbol_rate, self.name))
sink = cpm_sink_c(sps=config['if_rate'] // self.symbol_rate)
sink.set_title(self.name)
self.sinks.append(sink)
self.demod.connect_complex('if_out', sink)
self.kill_sink.append(sink)
elif plot == 'symbol':
sink = symbol_sink_f()
sink.set_title(self.name)